<template>
  <div class="register">
    <el-form ref="registerRef" :model="registerForm" :rules="registerRules" class="register-form">
      <h3 class="title">高校宿舍管理系统</h3>
      <el-form-item prop="email">
        <el-input v-model="registerForm.email" type="email" auto-complete="off" placeholder="邮箱" style="width: 63%">
          <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
        </el-input>
        <div class="register-code">
          <el-button type="primary" :disabled="down.disabled" v-if="down.show" @click="getCode">获取验证码</el-button>
          <el-button type="primary" :disabled="!down.disabled" v-if="!down.show" @click="getCode">{{ down.count
          }}s后获取</el-button>
        </div>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="registerForm.password" type="password" auto-complete="off" placeholder="密码"
          @keyup.enter="handleRegister">
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="rePassword">
        <el-input v-model="registerForm.rePassword" type="password" auto-complete="off" placeholder="确认密码"
          @keyup.enter="handleRegister">
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaOnOff">
        <el-input v-model="registerForm.code" auto-complete="off" placeholder="验证码" @keyup.enter="handleRegister">
          <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="medium" type="primary" style="width:100%;" @click.prevent="handleRegister">
          <span v-if="!loading">注 册</span>
          <span v-else>注 册 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/login'">使用已注册账号登录</router-link>
        </div>
      </el-form-item>
    </el-form>
  </div>
</template>

<script setup>
import { ElMessageBox } from "element-plus";
import { ElNotification } from 'element-plus'
import { getCodeImg, register } from "@/api/login";

const router = useRouter();
const { proxy } = getCurrentInstance();

const down = reactive({
  show: true,
  disabled: false,
  count: 60,
})

const registerForm = ref({
  email: "",
  password: "",
  rePassword: "",
  code: ""
});

const equalToPassword = (rule, value, callback) => {
  if (registerForm.value.password !== value) {
    callback(new Error("两次输入的密码不一致"));
  } else {
    callback();
  }
};

const registerRules = {
  email: [
    { required: true, trigger: "blur", message: "请输入您的账号" }
  ],
  password: [
    { required: true, trigger: "blur", message: "请输入您的密码" },
    { min: 5, max: 20, message: "用户密码长度必须介于 5 和 20 之间", trigger: "blur" }
  ],
  rePassword: [
    { required: true, trigger: "blur", message: "请再次输入您的密码" },
    { required: true, validator: equalToPassword, trigger: "blur" }
  ],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }]
};

const loading = ref(false);
const captchaOnOff = ref(true);

const handleRegister = () => {
  proxy.$refs.registerRef.validate(valid => {
    if (valid) {
      loading.value = true;
      register(registerForm.value).then(res => {
        const username = registerForm.value.email;
        ElMessageBox.alert("<font color='red'>恭喜你，您的账号 " + username + " 注册成功！</font>", "系统提示", {
          dangerouslyUseHTMLString: true,
          type: "success",
        }).then(() => {
          router.push("/login");
        }).catch(() => { });
      }).catch(() => {
        loading.value = false;
        ElNotification({
          title: '提示',
          message: '注册失败',
          type: 'warning'
        })
      });
    }
  });
}

const getCode = () => {
  proxy.$refs.registerRef.validateField("email", valid => {
    console.log(valid);
    if (!valid) {
      getCodeImg("REGISTER", registerForm.value.email).then(res => {
        countdown()
      });
    }
  })
}
const countdown = () => {
  if (down.show) {
    down.show = false;
    var t = setInterval(() => {
      if (down.count > 0 && down.count <= 60) {
        down.count--;
      } else {
        clearInterval(t);
        down.show = true;
        down.count = 60;
      }
    }, 1000);
  }
}
</script>

<style lang='scss' scoped>
.register {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.register-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.register-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.register-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-register-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.register-code-img {
  height: 38px;
}
</style>
